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  1. ,
    via GitHub by nathandunn

    Nginx does not handle websocket requests. Configure nginx proxy for websockets.

  2. ,

    You are probably trying to write to a connection when the other end (the remote end of the connection) has already closed it. Broken pipe  	at Method)	at	at	at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(	at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(	at org.apache.coyote.http11.InternalOutputBuffer.flush(	at org.apache.coyote.http11.Http11Processor.action(	at org.apache.coyote.Response.action(	at org.apache.catalina.connector.OutputBuffer.doFlush(